Stool specimens suspected of containing which of the following enteric pathogens should be collected and transported only in Cary-Blair medium because buffered glycerol saline is toxic for this bacterium?
a. Vibrio
b. Salmonella
c. Shigella
d. Plesiomonas
A
Fecal specimens sent for the detection of Vibrio spp. should be collected and transported only in Cary-Blair medium. Buffered glycerol saline is not acceptable, because glycerol is toxic for vibrio cells. Feces is preferable, but rectal swabs are acceptable during the acute phase of diarrheal illness.
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